OpenAI has confirmed the departure of Barret Zoph, its head of enterprise AI sales, following a tenure of just five months. Zoph rejoined the company in mid-January 2026 after serving as co-founder and chief technology officer at Thinking Machines Lab, an artificial intelligence startup founded by former OpenAI CTO Mira Murati. His return was part of a broader movement of former OpenAI executives, including Luke Metz and Sam Schoenholz, who collectively resumed their roles at the organization after several weeks of internal negotiations. Initially tasked with spearheading OpenAI’s enterprise division, Zoph’s appointment aligned with the company’s stated strategic pivot to prioritize revenue-generating enterprise and coding initiatives ahead of its anticipated initial public offering. The circumstances surrounding Zoph’s previous departure and rapid exit highlight the volatile executive landscape. He originally left OpenAI in the fall of 2024 to join Murati’s venture, which has maintained a historically competitive relationship with OpenAI. Murati, who briefly assumed leadership of OpenAI during the November 2023 executive upheaval, departed OpenAI in September 2024 to launch Thinking Machines Lab alongside a cohort of former colleagues. Zoph’s tenure at the competing firm ended abruptly in January 2026 following reports of alleged misconduct involving an undisclosed workplace relationship, prompting Murati to announce his removal as CTO and his replacement. Upon Zoph’s return to OpenAI, leadership publicly emphasized the strategic importance of his enterprise mandate. However, his sudden departure underscores ongoing leadership churn and the complexities of integrating former talent back into the organization. OpenAI did not provide a detailed explanation for the separation, and Zoph did not respond to requests for comment. He had communicated his exit through internal communication channels with a farewell message. The move continues to shape OpenAI’s executive structure as it navigates pre-IPO preparations and competitive pressures from independent ventures spun out of its own ranks.